Address issue #288 where `core-result` test was incorrectly marked #254

	name: Installability

	on:
	push:
	branches:
	- develop
	- master
	pull_request:
	schedule:
	- cron: '0 0 1 * *'

	jobs:
	installability:
	name: "Installability"
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-2019]
	env:
	NAME: Install-${{ matrix.os }}
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8

	- name: Force cmake version to older than runner's
	uses: jwlawson/[email protected]
	with:
	cmake-version: '3.22.2'

	- name: Install
	shell: bash
	run: \|
	git config --global core.longpaths true
	git clone --depth 1 https://github.com/ned14/quickcpplib.git
	pip install --user gitpython
	python quickcpplib/scripts/test_cpp-pm_install.py conan/test_package/example.cpp quickcpplib quickcpplib::hl https://github.com/ned14/quickcpplib master outcome outcome::hl https://github.com/ned14/outcome develop
	cd test_cpp-pm_install
	mkdir build
	cd build
	cmake .. -DCMAKE_BUILD_TYPE=Release $CMAKE_CONFIGURE_OPTIONS
	cmake --build .

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